Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.
A. Scratch
B. Indentation
C. Dynamic
D. Rebound
Answer: Option A
A. Scratch
B. Indentation
C. Dynamic
D. Rebound
Answer: Option A
Which of the following will resist maxi-mum shock & vibration without cracking?
A. Grey cast iron
B. White cast iron
C. Malleable iron
D. Graphite
A. Pulverised fuel
B. Travelling grate stoker firing
C. Circulating fluidised bed
D. Fluidised bed
Isotropic materials have the same __________ in all directions.
A. Induced stresses
B. Density
C. Elastic properties
D. Thermal properties
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